CN211899029U

CN211899029U - Anti-fracture buckling restrained brace

Info

Publication number: CN211899029U
Application number: CN201921952274.5U
Authority: CN
Inventors: 方东兴
Original assignee: Zhongtong Litai Hainan Technology Co ltd
Current assignee: Zhongtong Litai Hainan Technology Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2020-11-10
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses a prevent cracked bucking restraint and support, including the steel sheath, the inner chamber fixedly connected with core of steel sheath, the equal fixedly connected with connecting plate in steel sheath's both ends, one side fixedly connected with end plate of steel sheath is kept away from to the connecting plate, the both sides of core extend to steel sheath's outside and fixedly connected with restraint section, the inner chamber of steel sheath and the fixed surface that is located the core are connected with the filler. The utility model discloses a cooperation of steel sheath, core, connecting plate, end plate, restraint section and filler is used, can be used for building structure, makes under its holding strength's the condition, is showing and alleviates component weight and volume, has fine practicality, through increasing the support ability of core, promotes traditional bucking restraint strutting arrangement's mechanical properties on the whole, avoids the emergence of phenomenon of splitting, adopts the core of H shape cross section, its simple structure, workable, and the antidetonation is effectual.

Description

Anti-fracture buckling restrained brace

Technical Field

The utility model relates to a civil engineering technical field specifically is a prevent cracked bucking restraint and support.

Background

The buckling restrained brace is a displacement damper, also called as an unbonded brace, is a novel anti-seismic energy dissipation member with excellent performance, can achieve yielding under the conditions of tension and compression, overcomes the defect that the traditional brace is buckled when being compressed, greatly improves the anti-seismic performance of the structure, is mainly divided into two types in the prior buckling restrained brace, one type is a pure steel type buckling restrained brace, and the other type is a buckling restrained brace taking steel pipe concrete as a restraint unit, the steel core plate adopted by the prior buckling restrained brace has single function in the whole structure, mainly utilizes the elastoplasticity of the steel material to dissipate energy, particularly when the support tonnage is large, the section of the whole brace is often large, the particularly large section in practical engineering application has great influence on the use function of the building, and if the section is reduced, often, the lateral stiffness is insufficient and the fracture phenomenon occurs when the load is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent cracked bucking restraint and support possesses the cracked advantage of improvement intensity can be prevented, and the steel core board of having solved current bucking restraint and supporting adoption function is comparatively single in overall structure, when supporting the cross-section and restricting, because the lateral rigidity is not enough to lead to supporting the fracture problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an prevent cracked bucking restraint and support, includes the steel sheath, the inner chamber fixedly connected with core of steel sheath, the equal fixedly connected with connecting plate in both ends of steel sheath, one side fixedly connected with end plate of steel sheath is kept away from to the connecting plate, the both sides of core extend to the outside and the fixedly connected with restraint section of steel sheath, the inner chamber of steel sheath and the fixed surface that is located the core are connected with the filler.

Preferably, the core plate is an H-shaped steel core structure plate, the cross section of the core plate is H-shaped, the top and the bottom of the core plate are fixedly connected with inner members, and the inner members are steel members.

Preferably, the filler is concrete filler, the concrete filler is poured in a gap between the steel sheath and the core plate, and the concrete filler and the core plate are poured into an integral structure.

Preferably, the core plate is made of Q355 steel, Q235 steel, Q195 steel and LY160 and LY225 low yield point steel with strength grade, an unbonded layer with the thickness of 4mm is arranged on the outer surface of the core plate, and the unbonded layer is a polytetrafluoroethylene plate.

Preferably, the four corners of the end plate are connected with bolts in a threaded manner, and the four corners of the connecting plate are provided with screw holes matched with the bolts for use.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a cooperation of steel sheath, core, connecting plate, end plate, restraint section and filler is used, can be used for building structure, makes under its holding strength's the condition, is showing and alleviates component weight and volume, has fine practicality, through increasing the support ability of core, promotes traditional bucking restraint strutting arrangement's mechanical properties on the whole, avoids the emergence of phenomenon of splitting, adopts the core of H shape cross section, its simple structure, workable, and the antidetonation is effectual.

2. The utility model discloses a set up the core, the core is H shaped steel core structural slab, internal connection's internals, can greatly increase the support compressive capacity of core, guarantee holistic stability at the pressurized in-process, thereby increase the bearing capacity, through setting up filler and no adhesive layer, the smooth coefficient of friction in polytetrafluoroethylene plate surface is low, can further reduce the frictional force between core and the filler, and its compressive strength is very high, produce great compression deformation in the within range of allowwing when can making the core pressurized.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic perspective view of the steel sheath and core plate connection structure of the present invention;

FIG. 3 is a schematic perspective view of the connection structure of the core board and the connection board of the present invention;

fig. 4 is a schematic cross-sectional view of the steel sheath of the present invention.

In the figure: 1. a steel sheath; 2. a core board; 3. a connecting plate; 4. an end plate; 5. a restraint section; 6. a filler; 7. an inner member; 8. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The components adopted by the utility model are all universal standard components or components known by the technicians in the field, and the structure and the principle of the components are known by the technicians through technical manuals or conventional experimental methods.

Referring to fig. 1-4, an anti-fracture buckling restrained brace comprises a steel sheath 1, a core plate 2 is fixedly connected to an inner cavity of the steel sheath 1, the core plate 2 is an H-shaped steel core structural plate, the cross section of the core plate 2 is H-shaped, inner members 7 are fixedly connected to the top and the bottom of the core plate 2, the inner members 7 are steel members, the core plate 2 is made of materials with the types of Q355 steel, Q235 steel, Q195 steel, LY160 and LY225 low yield point steel with the strength grade, an unbonded layer with the thickness of 4mm is arranged on the outer surface of the core plate 2, the unbonded layer is a polytetrafluoroethylene plate, connecting plates 3 are fixedly connected to two ends of the steel sheath 1, an end plate 4 is fixedly connected to one side of the connecting plate 3 away from the steel sheath 1, bolts 8 are screwed to four corners of the end plate 4, screw holes matched with the bolts 8 are formed in four corners of the connecting plate 3, two sides of the core plate 2 extend to the outside of the steel, the inner cavity of the steel sheath 1 and the surface of the core plate 2 are fixedly connected with a filler 6, the filler 6 is a concrete filler, the concrete filler is poured in a gap between the steel sheath 1 and the core plate 2, the concrete filler and the core plate 2 are poured into an integral structure, by arranging the core plate 2, the core plate 2 is an H-shaped steel core structure plate, and an inner member 7 connected inside, the supporting and pressure-resisting capacity of the core plate 2 can be greatly increased, the integral stability is ensured in the compression process, so that the supporting capacity is increased, by arranging the filler 6 and a bonding-free layer, the smooth friction coefficient of the surface of the polytetrafluoroethylene plate is low, the friction force between the core plate 2 and the filler 6 can be further reduced, the compressive strength is very high, the core plate 2 can generate larger compression deformation in an allowable range when being compressed, and by matching the steel sheath 1, the core plate 2, the connecting plate 3, the end plate 4, the restraint section 5 and the filler 6, can be used for building structure, under the circumstances that makes its holding strength, show and alleviate component weight and volume, have fine practicality, through the support ability that increases core 2, promote traditional bucking restraint strutting arrangement's mechanical properties on the whole, avoid the emergence of phenomenon of rupture, adopt core 2 of H shape cross section, its simple structure, workable, the antidetonation is effectual.

During the use, in the in-process of actual operation, can adopt the concrete filler to pour structure as an organic whole, it is more convenient and fast when pouring, and the associativity is better, compare with traditional bucking restraint strutting arrangement, inner member 7 has strengthened the intensity of core 2, promote traditional bucking restraint strutting arrangement's mechanical properties on the whole, under the condition of being drawn the pressure, core 2 can be stretched or compressed, the steel yields under the reciprocal load effect of core 2 realizes the hysteretic energy consumption, inner member 7 is as the side direction support of core 2, can improve the support compressive capacity of core 2 greatly, thereby the ability of the side direction resistance deformation of support has been improved, can effectively reduce the cross-section of whole support, the design requirement of "small cross-section support under the big bearing capacity" has been realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a buckling restrained brace of preventing splitting, includes steel sheath (1), its characterized in that: the inner chamber fixedly connected with core (2) of steel sheath (1), the equal fixedly connected with connecting plate (3) in both ends of steel sheath (1), one side fixedly connected with end plate (4) of steel sheath (1) are kept away from in connecting plate (3), the both sides of core (2) extend to the outside and the fixedly connected with restraint section (5) of steel sheath (1), the inner chamber of steel sheath (1) just is located the fixed surface of core (2) and is connected with filler (6).

2. The buckling-restrained brace against rupture as defined in claim 1, wherein: the core plate (2) is an H-shaped steel core structural plate, the cross section of the core plate (2) is H-shaped, the top and the bottom of the core plate (2) are fixedly connected with inner members (7), and the inner members (7) are steel members.

3. The buckling-restrained brace against rupture as defined in claim 1, wherein: the filler (6) is a concrete filler, the concrete filler is poured in a gap between the steel sheath (1) and the core plate (2), and the concrete filler and the core plate (2) are poured into an integral structure.

4. The buckling-restrained brace against rupture as defined in claim 1, wherein: the outer surface of the core plate (2) is provided with an unbonded layer with the thickness of 4mm, and the unbonded layer is a polytetrafluoroethylene plate.

5. The buckling-restrained brace against rupture as defined in claim 1, wherein: all threaded connection has bolt (8) in the four corners of end plate (4), the screw that uses with bolt (8) cooperation is seted up in the four corners of connecting plate (3).